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The VB4-P U2 switch with the spring and motor drive is intended for use in the complete distributing devices (CDD) of average tension of internal and external installation, and also for replacement which fulfilled the resource of switching devices in CREWE and KSO of last years of release. The switch represents the switching device of full factory readiness, consists of the case, three poles, the built-in mechanism of the spring and motor drive. FEATURES: • a possibility of the first inclusion, control of the switch in the absence of operational current; • in the presence on substation of operational current the spring of the drive is cocked automatically, in lack of operational current the spring is cocked manually by means of the removable handle; • high mechanical and switching resource; • small energy consumption on chains of inclusion and shutdown; • a possibility of management on operational chains on direct or alternating current; • a possibility of installation of additional electromagnets of disconnection of direct action from current chains and on the minimum tension that allows to make shutdown on RZA chains without existence of operational current; • an opportunity to organize control of integrity of chains of inclusion and shutdown with direct control of integrity of solenoids; • possibility of realization of mechanical blocking of turning on of the switch; • the closed cast pole is used.
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The switch vacuum with the spring and motor drive.